Yz426 timing chain length

3 replies to this topic
  • 91rmMike

Posted May 21, 2015 - 02:10 PM


What is the correct length of the timing chain? I bought a hotcams chain and with the tensioner removed I can't get it over both came without rocking the cam under the chain and then just barely getting it into its cradle. Getting the dot level with the case is a nightmare doing this. Should it not be able to wrap over the cams with the tensioner completely off?

  • 91rmMike

Posted May 21, 2015 - 02:13 PM


Can't edit on mobile.

Once the cam is rocked under the chain and in place it has slack in it but not very much, so it's not absurdly tight, just an absolute nightmare.

Visit the ThumperTalk Store for the lowest prices on motorcycle / ATV parts and accessories - Guaranteed
  • grayracer513

Posted May 21, 2015 - 03:02 PM


It is normal that the cam chain cannot be assembled over the second cam with both cams in their seats.  Has to be done by rocking the second cam, preferably the intake, under the chain, then rolling it down into place in the head.  Usually there isn't room to allow it to pass between the sprocket and the inside of the chain tunnel, anyway.

  • 91rmMike

Posted May 21, 2015 - 09:19 PM


Well, got it in there and running. I ended up rocking the exhaust cam under it, would have tried it with the intake had I seen your post. I was real close to taking it to Yamaha. New to 4 stroke maintenence so I was worrying every step of the way.

Related Content


Should I buy this bike? help....... by Numsa Hul

Dirt Bike   General Dirt Bike Forums   What bike should I buy?
  • * * * * *
  • 10 replies

James Stewart back on a YZ450F by YamaLink

Dirt Bike   Special Interest Forums   Pro Racing
  • Hot  47 replies

Is it worth it? (Cam and High compression piston) by macgi77

Dirt Bike   Make / Model Specific   Honda   CRF 150/230 F/L
  • Hot  36 replies

Wilson the Blue Privateer by jetfuel

Dirt Bike   Special Interest Forums   Pro Racing
  • Hot  50 replies

2016 YZ450 by CaptainKnobby

Dirt Bike   Dirt Bike Technical Forums   Suspension
  • Hot  59 replies

Join Our Community!

Even if you don't want to post, registered members get access to tools that make finding & following the good stuff easier.

If you enjoyed reading about "" here in the ThumperTalk archive, you'll LOVE our community. Come join ThumperTalk today!

The views and opinions expressed on this page are strictly those of the author, and have not been reviewed or approved by ThumperTalk.